The Alaska Volcano Observatory says the eruptions were about an hour apart on Thursday, with the first and smaller one about 8:30 a.m. The ash cloud in that eruption reached about 30,000 feet.
The National Weather Service says prevailing winds are expected to carry ash from the larger eruption east across Cook Inlet.
An ash fall advisory has been issued for the western Kenai Peninsula, and covers the towns of Kenai, Soldotna and Cooper Landing.
The smaller ash cloud was expected to reach Homer later Thursday with only trace amounts expected to fall.
Mount Redoubt late Sunday.
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